geo-spatial digital archive project (gdap) gdap.crma.ac.th feb 15, 2012 col. supachai srihom...

Geo-Spatial Digital Geo-Spatial Digital Archive ProjectArchive Project (GDAP)(GDAP)

gdap.crma.ac.th

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Feb 15, 2012Col. Supachai Srihom

Chulachomklao Royal Military AcademyNakhon Nayok, Thailand

Outline

• GDAP Overview– Objective, Motivation, Problems, Data

format– GDAP system design– GDAP web portal

• GDAP Implementation– Focus area– Implementation plan

Objective• Establish the South-East Asia Geospatial

information center.• Produce a demonstration system of online

geo-spatial data service• User can search and access the data

through various methods: text search, geo-location search, and meta-data search.

• The applications of the data will be for any studies that can utilize these data sets

Overview of GDAPGeo-Spatial Digital Archive Project

A demonstration system of online geo-spatial data service that user can search and access

the datathrough various through various methodsmethods : : text search, text search, geogeo--location search, location search, and metaand meta--data searchdata search . .The applications of the The applications of the data will be for any data will be for any studies that can utilize studies that can utilize these data setsthese data sets..

Motivation

– Availability of •Data: digital data via remote sensors,

aerial photos, vector, 3D, public maps •Communication: internet, multimedia•Tools/Software•Cheaper hardware: computers, storage,

digital cam, camcorder

Problem Statement

• Rarely exist online digital archive for Geo-Spatial Digital Data in Thailand

• Most kept for private usage• Create online Geo-Spatial Digital Archive

for public research

William Hunt’s Aerial Photographs Collection

World War II Map

Landsat Satellite Images

Sample Applications

– History and Archaeology Study – Urban Study – Land Use/Land Cover Study

Data Flow Diagram

TIFF

Metadata

DigitalArchive

JPEG Geo-Locate

Text-Based

Search Engine

Map Interface

Original

Converted

OpenLayer

Other Map Sources

GDAP Search Engine

Metadata

DigitalArchive

Text-BasedListing + Thumnail

Search Engine

Map Interface

OpenLayer

Other Map Sources

* Keyword Search* Web Interface* PHP Query to MySQL

Directory-Based

MySQL

• OpenLayer script• Query to MySQL• Embedded in HTML

• Google, MapServer• WMS, Yahoo, etc.

GDAP web site

SL-04

PC-01

Data inDigital Archive

PC-02

LOCATION INDEX

PC-03

Present Present Data in Data in

Location Location OrderOrder

PC-03a

Keyword Search Map System

PC-03b

Keyword Search

PC-04

bangkok

PC-05

Digital MapExample

PC-06

WHC Aerial Photograph on Map

PC-07

PC-10

PC-10a

Show the location of Map Data

On the Mark

Relation of database and map

PC-11

Acknowledgement

• CRMA• University of Kyoto - CSEAS• University of London -SOAS• Uninet